SEGAL, Ruti; STUPEL, Moshe; FLORES, Alfinio. Examples of multiple proofs in geometry: Part 1, tasks and hints. Ohio Journal of School Mathematics, [S. l.], v. 74, n. 2, 2017. Disponível em: https://ohiomathjournal.org/index.php/OJSM/article/view/5617. Acesso em: 2 may. 2024.